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The IUP Journal of Electrical and Electronics Engineering

Performance Analysis of Multiport Converters in Standalone PV Applications

Article Details

Pub. Date	: Oct, 2023
Product Name	: The IUP Journal of Electrical and Electronics Engineering
Product Type	: Article
Product Code	: IJEEE021023
Author Name	: S Sharma and K Rajambal
Availability	: YES
Subject/Domain	: Engineering
Download Format	: PDF Format
No. of Pages	: 15

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Abstract

The paper presents a unique approach to addressing the conversion of power requirements for standalone photovoltaic (PV) systems through the development of a multiport multi-bus power converter with partial power processing (PPP) capability. The primary objective is to improve the overall performance and efficiency of the PV system by effectively integrating multiple energy sources and loads. Maximum PPP method is applied by connecting one of the primary converter ports in series between the input and output. The aim is to optimize the converter's performance and achieve maximum power conversion efficiency. The performance of the converter is studied for various solar intensities. The effects of duty ratio of the converter are examined, and the optimum modulation index to maintain AC output constant for different intensities is identified. The results are discussed in detail.

Introduction

Energy harvesting has been continually increasing according to energy utilization demand across the globe (Bhattacharjee et al., 2019). The origin of these standard requirements may stem from pristine and replicable sources that align with Renewable Energy Sources (RES), such as solar, wind, geothermal, hydro power, ocean energy and bio energy (Erdiwansyah et al., 2021). Extensive research is going on in the field of solar energy, which is booming in the current generation in combination with suitable power converters (Chen et al., 2020). Over the last 20 years, demand for solar-electric energy has steadily increased by 20%-25% every year (Farhangi and Toliyat, 2015). The performance of solar photovoltaic (PV) systems relies on factors such as irradiance, ambient temperature, weather conditions, etc. (Li et al., 2012). Consequently, ensuring consistent power supply to the load necessitates the utilization of an Energy Storage System (ESS), such as batteries. Moreover, integrating solar PV with ESS holds the potential to enhance the overall system